A) absorbs some neutrons
B) slows down the neutrons
C) speeds up neutrons
D) emits neutrons
Correct Answer: A
Solution :
A control rod is a rod made of chemical elements capable of absorbing many neutrons without fissioning themselves. They are used in nuclear reactors to control the rate of fission of uranium and plutonium. Cadmium absorbs some neutrons hence in atomic reactor cadmium rods are used to control the chain reaction.
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